Comments for Keith's Electronics Blog

Comment on Repairing a Soundcraft Spirit E6 Mixer Switching Power Supply by Farquhar

Farquhar — Mon, 10 Jun 2013 21:19:12 +0000

Once again , I have the S/craft pdf for these mixers. Cost me a tenner 8 Anyone who wants a copy e mail me

Farquhar at ( inbox dot com )

As a solution I got hold of 4 0-15v psu packs , the little rectangular ones. Inver one for -15v and cascade the rest to give +15v and +45v . Works a charm. The PSU's are external to my EPM12

Comment on Repairing a Soundcraft Spirit E6 Mixer Switching Power Supply by SteveDee

SteveDee — Mon, 10 Jun 2013 20:54:03 +0000

Victor, I found quite a few sources for the zener diode on the internet (including Amazon, eBay & Farnell) but don’t know what options are available to you.

When fitted, I calculate the mixer worked for about 1000ms before the replacement failed!

According to SoundCraft, if you are going to try replacing this, you should replace all silicon in this circuit at the same time. A new board from SoundCraft was quoted at just under £100, so we dumped the mixer.

Comment on $10 Razor E100 Scooter Project Day Two: First Battery-Charging Attempt by Keith Neufeld

Keith Neufeld — Sun, 09 Jun 2013 22:34:13 +0000

Julius, sorry it has taken a while to get back to you — I’ve had a lot going on including travel.

I’m working on a separate desulfation writeup and I wouldn’t yet rule out the 0-V battery.

Comment on $10 Razor E100 Scooter Project Day Two: First Battery-Charging Attempt by Keith Neufeld

Keith Neufeld — Sun, 09 Jun 2013 22:33:05 +0000

Arnuschky, yup! It was for ironing.

I’ve bought my own now.

Comment on $10 Razor E100 Scooter Project Day Two: First Battery-Charging Attempt by Julius Rahmandar

Julius Rahmandar — Fri, 07 Jun 2013 17:11:20 +0000

Hi Keith, you’ve done very many projects that interest me. So here are a few questions:
- I have several sealed batteries like yours except that at this time they are 0v. Is that a goner for sure?
- How do you plan on desulfating them. I saw a full-wave AC rectification circuit followed a capacitor (5-10uF at rated ACV to current limit the desulfator (dangerous to those that don’t know what they are doing), but that didn’t work for me. The theory is the 60Hz pulses are supposed to do the desulfating).
- How is the bus project doing?
Thanks

Comment on Repairing a Soundcraft Spirit E6 Mixer Switching Power Supply by A.

A. — Mon, 20 May 2013 19:58:30 +0000

Somebody has a diagram for this Soundcraft Spirit E12 mixer?
Can’t find it anywhere -urgent need for repair. Thanks for help.

Comment on Repairing a Soundcraft Spirit E6 Mixer Switching Power Supply by Bart

Bart — Wed, 15 May 2013 01:04:44 +0000

Hi!

Im really glad to find this blog. I’ve got one of these Soundcraft mixers laying around for over two years now. Not working ofcourse.

I just have the slightest electrical knowledge and a buddy of mine didn’t want to touch the PSU. He probably already saw the amount of work commin you put in it.

With this blogpost I might be able to fix it with a little help from friends. Might try it sometime in the next couple weeks. I’ll let you know if it works or not.

Your blog’s still usefull after all these years
Greetings from Holland

Comment on Rebuilding the CupCake Extruder Heater (When It Wasn’t Very Broken) by Jin

Jin — Tue, 07 May 2013 02:20:31 +0000

It’s been a while since you’ve written about your CupCake. Are you still playing around with it? Anything new recently?

Comment on Repairing a Soundcraft Spirit E6 Mixer Switching Power Supply by Victor

Victor — Sat, 04 May 2013 16:31:39 +0000

Hi have similar problem with my M12 mixer unfortunately I can find the 1N5378B here in Dubai as well in the Philippines any idea where can I get this part?

thanks and nice info from you

Many thanks

Comment on $10 Razor E100 Scooter Project Day Two: First Battery-Charging Attempt by Arnuschky

Arnuschky — Fri, 03 May 2013 18:27:52 +0000

Your mum uses the water most likely for ironing – tap water leaves stains. That’s at least was my mum does, and was thus my source of distilled water for years.